fix link (#82)

Author: jacobprall

sqlite-cloud/platform/extensions.mdx

@@ -14,6 +14,6 @@ SQLite Cloud comes with the following pre-installed SQLite extensions. These ext
 - **[Math](https://www.sqlite.org/lang_mathfunc.html)**: Mathematical functions.
 - **[RTree](https://www.sqlite.org/rtree.html)**: R-Tree index for storing and querying spatial data.
 - **[Geopoly](https://www.sqlite.org/geopoly.html)**: Functions for working with geospatial data.
-- **[sqlite-vec](/docs/vector-search)**: Vector storage extension for similarity search.
+- **[sqlite-vec](/docs/vector)**: Vector storage extension for similarity search.
 
 In the future, we plan to allow users to install their own extensions. If you have a specific extension you would like to use, please let us know by [adding to this issue](https://github.com/sqlitecloud/docs/issues/34).